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Maxim MAX2838 Manual

Evaluation kit

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19-4221; Rev 0; 7/08
General Description
The MAX2838 evaluation kit (EV kit) simplifies testing of
the MAX2838 receive and transmit performance in
WiMAX™ applications operating in the 3.3GHz to
3.9GHz ISM band. The EV kit provides 50Ω SMA con-
nectors for all RF and baseband inputs and outputs.
Differential to single-ended and single-ended to differ-
ential line drivers are provided to convert the differential
I/Q baseband inputs and outputs to single ended.
DESIGNATION
QTY
C3, C8, C24, C28,
C30, C33, C38,
0
C41–C44, C47,
C75, C77
C4–C7, C10, C13,
C17, C18, C40,
14
C45, C46, C59,
C60, C67
C9, C16, C31,
C70, C74, C86,
7
C89
C11, C23, C26,
4
C32
C12, C53, C55,
4
C66
C14
1
C19, C88
2
C20, C29, C35
3
C25
1
C27
1
WiMAX is a trademark of WiMAX forum.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
DESCRIPTION
Not installed, capacitors
0.1µF ±10% ceramic capacitors
(0402)
Murata GRM155R61A104K
0.033µF ±10% ceramic
capacitors (0402)
Murata GRM155R71A333K
0.01µF ±10% ceramic capacitors
(0402)
Murata GRM155R71E103K
10µF ±10% tantalum capacitors—
R-case
AVX TAJR106K006R
2200pF ±10% ceramic capacitor
(0402)
Murata GRM155R71H222K
0.15µF ±10% ceramic capacitors
(0402)
Murata GRM155R61A154K
1.0µF ±10% ceramic capacitors
(0805)
Murata GRM155R60J105K
1000pF ±5% ceramic capacitor
(0402)
Murata GRM1555C1H102J
2.2µF ±10% tantalum capacitor—
R-case
AVX TAJR225K006R
MAX2838 Evaluation Kit
o On-Board Line Driver and Voltage Reference
o 50Ω SMA Connectors on All RF and Baseband Ports
o PC Control Software Available at
www.maxim-ic.com/evkitsoftware
PART
MAX2838EVKIT+
+ Denotes lead-free and RoHS compliant.
DESIGNATION
QTY
C37, C39
2
C48, C49
2
C68, C69
2
C79
1
C81, C83
2
J17
0
J18
1
L1
1
L2, L4, L5
0
L7
1
R1, R7
2
R2, R5, R6, R38
4
R3, R10
2
R4, R26
2
Features
Ordering Information
TYPE
EV Kit
Component List
DESCRIPTION
2.2µF ±10% ceramic capacitors
(0603)
Murata GRM188R61A225K
3.3pF ±0.1pF ceramic capacitors
(0402)
Murata GRM1555C1H3R3B
4.7pF ±0.1pF ceramic capacitors
(0402)
Murata GRM1555C1H4R7B
120pF ±5% ceramic capacitor
(0402)
Murata GRM1555C1H121J
2.4pF ±0.1pF ceramic capacitors
(0402)
Murata GRM1555C1H2R4B
Not installed, 2 x 13-pin header
DB25 horizontal male PCB
connector
AMP 5747238-4
2.2nH ±0.1nH inductor (0402)
Murata LQP15MN2N2B02
Not installed, inductors
4.7nH ±0.1nH inductor (0402)
Murata LQP15MN4R7B02
200Ω ±1% resistors (0402)
205Ω ±1% resistors (0402)
226Ω ±1% resistors (0402)
49.9Ω ±1% resistors (0402)
1

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Summary of Contents for Maxim MAX2838

  • Page 1 49.9Ω ±1% resistors (0402) R4, R26 2.2µF ±10% tantalum capacitor— R-case AVX TAJR225K006R WiMAX is a trademark of WiMAX forum. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
  • Page 2 (3 SOT23) JPTXBBQ+, 40MHz TCXO JPTXBBQ-, TUNE Kyocera +5V, -5V, VBAT, Test points, PCB red KT3225N40000ECV28ZAA VCCAUX Keystone 5010 Ultra-low-noise LDO Shunts (JPB1–JPB7, RXBBBUF) Maxim MAX8510EXK29+ — Sullins SSC02SYAN (5 SC70) — MAX2838 EV Kit+ PCB Not installed, ultra-low-noise LDO _______________________________________________________________________________________...
  • Page 3: Quick Start

    Murata Mfg. Co., Ltd. 770-436-1300 www.murata-northamerica.com Note: Indicate that you are using the MAX2838 when contacting these component suppliers. Quick Start 3) With the power supply turned off, connect the +3.3V power supply to VBAT and VCCAUX. Connect the Recommended Test Equipment power-supply ground to the header labeled GND.
  • Page 4 MAX2838 Evaluation Kit 4) Press the SEND ALL button. 2) Connect a 1MHz I/Q signal to pins TXBBI and TXBBQ, respectively. Set the input amplitude of 5) In the Registers panel of the software, set ENABLE each channel to 90mV with 90 degrees phase and RXTX to be 1 to activate the receive path.
  • Page 5: Layout Considerations

    Layout Considerations arrangement provides local decoupling at each V The MAX2838 EV kit can serve as a guide for board pin. Use at least one via per bypass capacitor for a low- layout. Keep PCB trace lengths as short as possible to inductance ground connection.
  • Page 6 MAX2838 Evaluation Kit Figure 3a. MAX2838 EV Kit Schematic (Sheet 1 of 2) _______________________________________________________________________________________...
  • Page 7 MAX2838 Evaluation Kit Figure 3b. MAX2838 EV Kit Schematic (Sheet 2 of 2) _______________________________________________________________________________________...
  • Page 8 MAX2838 Evaluation Kit Figure 4. MAX2838 EV Kit PCB Layout—Top Silkscreen _______________________________________________________________________________________...
  • Page 9 MAX2838 Evaluation Kit Figure 5. MAX2838 EV Kit PCB Layout—Component Side _______________________________________________________________________________________...
  • Page 10 MAX2838 Evaluation Kit Figure 6. MAX2838 EV Kit PCB Layout—Inner Layer 2, Ground Layer ______________________________________________________________________________________...
  • Page 11 MAX2838 Evaluation Kit Figure 7. MAX2838 EV Kit PCB Layout—Inner Layer 3, Routes ______________________________________________________________________________________...
  • Page 12 MAX2838 Evaluation Kit Figure 8. MAX2838 EV Kit PCB Layout—Solder Side ______________________________________________________________________________________...
  • Page 13 Figure 9. MAX2838 EV Kit PCB Layout—Bottom Silkscreen Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.